Tag: "avian" at biology news
Avian cholera could spread from Great Salt Lake
...National Wildlife Health Center are concerned that avian
cholera, which recently killed about 30,000 eared ...d Pasteurella multocida, the bacterium that causes avian
cholera, from dead grebes that were sent to the USGS National Wildlife Health Center in Madison, Wis...
Computer models to simulate hypothetical outbreak of avian flu
...simulating the outbreak of this potentially deadly avian
flu in a hypothetical human community, the researc...e Park, N.C. To simulate the spread of a possible avian
flu outbreak that would become infectious between humans, the researchers are developing models of a...
Chicken genomic sequence yields insight into vertebrate evolution
...n sequence, representing a clade of at least 9,600 avian
species, helps to fill the evolutionary gap betwee...nomic organization A remarkable characteristic of avian
genomes is the large variability in the size of their chromosomes. In addition to a pair of sex chr...
First analysis of chicken genome offers many new insights
... a nutritional resource and to limit the spread of avian
flu viruses. Scientists found the chicken genome has about the same number of genes as the human genome: 20,000-23,000 versus the human genome's estimated 20,000-25,000 genes. However, those genes are contained in only 1 billion DNA base pairs, a...
UCSD researchers derive lessons about human evolution from chicken genome
... as for its role in medical research. Outbreaks of avian
flu and their potential impact on human disease factors were also a major concern. Further details of Pevzner and Tesler's work on the chicken genome project with co-authors Guillaume Bourque of the Genome Institute of Singapore, as well as Evgeny M...
Researchers compare chicken, human genomes
...n which mammals were active mainly at night. The avian
genome contains a gene that codes for an enzyme in...uses and some types of cancer. Recent outbreaks of avian
flu have accelerated agricultural researchers' interest in learning more about the chicken genome an...
Chicken genome analysis unlocks secrets of mammalian and bird evolution
...and breeder Hans Ablanalp, a professor emeritus of avian
science. The Red Jungle Fowl is the ancestral spec...t illustrates how essential it is that we conserve avian
stocks if we are to make further research advances," she said. "It's vital that we make sure that e...
Global bird populations face dramatic decline in coming decades, study predicts
...t loss and increasing numbers of invasive species, avian
declines and extinctions are predicted to continue... their loss," the authors wrote. "Disconcertingly, avian
declines may in fact portray a best-case scenario, since fish, amphibians, reptiles and mammals are ...
Scientists discover unique microbe in California's largest lake
... polluted water body. After massive fish kills and avian
mortality in the 1990s, federal agencies targeted the lake for one of the nation's largest restoration projects. Wood says the discovery also shows that the Salton Sea, with its high load of nutrients, may provide an environment that allows this nove...
Bird brains show how trial and error may contribute to learning
...lular nucleus of the anterior nidopallium). In the avian
brain, LMAN receives input about complex movements from the basal ganglia and forwards the information to motor neurons that participate in song production. Without LMAN, scientists have long known, a young bird cannot learn its song, but an adult bi...
Tips from the Journals of the American Society for Microbiology
...iation between poultry vaccinated or infected with avian
influenza say researchers from Georgia. Their findings appear in the February 2005 issue of the Journal of Clinical Microbiology. Avian influenza (AI), a viral disease of poultry, causes a wide range of diseases affecting multiple organs and often r...
Bird IQ test takes flight
...febvre, inventor of the world's only comprehensive avian
IQ index. His intelligence index is not only separating the featherweights from the big bird brains, it's also providing clues about why some birds make great immigrants, as well as insight into the parallel evolution of primate and bird brains. The ...
Ecological destruction fuels emerging diseases
... and wildlife diseases such as West Nile Virus and avian
flu. "The biodiversity crisis is not just about extinctions," says Dr. Brooks, whose pioneering parasite systematics research is supported by Science and Engineering Research Canada (NSERC). "In the past, when there have been episodes of major climat...
Leslie Roberts of Science wins ASM Public Communications Award
...both old foes like polio and emerging threats like avian
influenza. She also coordinates the magazine's coverage of biomedicine and environment/ecology. In a previous stint at Science in the 1980s and 1990s, Roberts was a senior writer specializing in genetics and the environment. Roberts has also served a...
Influenza vaccine uses insect cells to speed development
...drawback to this method is the possibility that an avian
influenza virus would be lethal to embryos in the eggs. The vaccine strategy pursued by Protein Sciences, known commercially as FluBlok, does not rely on whole vaccine virus. It uses a purified concentration of a key molecule on the surface of the ...
Researchers peer inside embryonic/fetal hearts to discover causes of congenital heart disease
...tructure during its earliest days. In his lab, the avian
embryo is an experimental model capable of being modified to allow for the study of specific heart conditions. For example, hypoplastic left heart syndrome is created by simply tying a small suture around the developing atrium, which alters how blood...
Clearing the air on airplane cabin air
...ty of a new or emerging infection, such as SARS or avian
(bird) flu, appears in the headlines. Each new report of an avian
flu outbreak raises questions about whether airplane cabin air can transmit the virus, which some sc...
Worth the wait? A neural mechanism related to impulsive decision-making
...thors provided evidence that single neurons in the avian
forebrain showed increased activity in anticipation of an upcoming reward. This reward-related activation was greater when the pigeons expected a large reward than when they expected a small one. But most importantly, the degree of activation decreas...
PNAS highlights for the week of April 25-29
...sparrows, see shorter UV wavelengths compared with avian
predators, such as hawks. To determine if differen... more conspicuous to other songbirds than to their avian
predators, suggesting the evolution of a private signaling system. These results emphasize the impor...
Deep thoughts of a birdbrain
...e nidopallium caudolaterale (NCL), a region of the avian
brain considered analogous to the mammalian prefro...associated with executive control. And though the avian
NCL and mammalian prefrontal cortex clearly differ after 320 million years of divergent evolution, R...
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